board-palmtt.c

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/*
 * linux/arch/arm/mach-omap1/board-palmtt.c
 *
 * Modified from board-palmtt2.c
 *
 * Modified and amended for Palm Tungsten|T
 * by Marek Vasut <[email protected]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/notifier.h>
#include <linux/clk.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/leds.h>
#include <linux/omapfb.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/platform_data/omap1_bl.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <plat/led.h>
#include <mach/flash.h>
#include <mach/mux.h>
#include <plat/dma.h>
#include <plat/tc.h>
#include <mach/irda.h>
#include <linux/platform_data/keypad-omap.h>

#include <mach/hardware.h>
#include <mach/usb.h>

#include "common.h"

#define PALMTT_USBDETECT_GPIO   0
#define PALMTT_CABLE_GPIO   1
#define PALMTT_LED_GPIO     3
#define PALMTT_PENIRQ_GPIO  6
#define PALMTT_MMC_WP_GPIO  8
#define PALMTT_HDQ_GPIO     11

static const unsigned int palmtt_keymap[] = {
    KEY(0, 0, KEY_ESC),
    KEY(1, 0, KEY_SPACE),
    KEY(2, 0, KEY_LEFTCTRL),
    KEY(3, 0, KEY_TAB),
    KEY(4, 0, KEY_ENTER),
    KEY(0, 1, KEY_LEFT),
    KEY(1, 1, KEY_DOWN),
    KEY(2, 1, KEY_UP),
    KEY(3, 1, KEY_RIGHT),
    KEY(0, 2, KEY_SLEEP),
    KEY(4, 2, KEY_Y),
};

static struct mtd_partition palmtt_partitions[] = {
    {
        .name       = "write8k",
        .offset     = 0,
        .size       = SZ_8K,
        .mask_flags = 0,
    },
    {
        .name       = "PalmOS-BootLoader(ro)",
        .offset     = SZ_8K,
        .size       = 7 * SZ_8K,
        .mask_flags = MTD_WRITEABLE,
    },
    {
        .name       = "u-boot",
        .offset     = MTDPART_OFS_APPEND,
        .size       = 8 * SZ_8K,
        .mask_flags = 0,
    },
    {
        .name       = "PalmOS-FS(ro)",
        .offset     = MTDPART_OFS_APPEND,
        .size       = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
        .mask_flags = MTD_WRITEABLE,
    },
    {
        .name       = "u-boot(rez)",
        .offset     = MTDPART_OFS_APPEND,
        .size       = SZ_128K,
        .mask_flags = 0
    },
    {
        .name       = "empty",
        .offset     = MTDPART_OFS_APPEND,
        .size       = MTDPART_SIZ_FULL,
        .mask_flags = 0
    }
};

static struct physmap_flash_data palmtt_flash_data = {
    .width      = 2,
    .set_vpp    = omap1_set_vpp,
    .parts      = palmtt_partitions,
    .nr_parts   = ARRAY_SIZE(palmtt_partitions),
};

static struct resource palmtt_flash_resource = {
    .start      = OMAP_CS0_PHYS,
    .end        = OMAP_CS0_PHYS + SZ_8M - 1,
    .flags      = IORESOURCE_MEM,
};

static struct platform_device palmtt_flash_device = {
    .name       = "physmap-flash",
    .id     = 0,
    .dev        = {
        .platform_data  = &palmtt_flash_data,
    },
    .num_resources  = 1,
    .resource   = &palmtt_flash_resource,
};

static struct resource palmtt_kp_resources[] = {
    [0] = {
        .start  = INT_KEYBOARD,
        .end    = INT_KEYBOARD,
        .flags  = IORESOURCE_IRQ,
    },
};

static const struct matrix_keymap_data palmtt_keymap_data = {
    .keymap     = palmtt_keymap,
    .keymap_size    = ARRAY_SIZE(palmtt_keymap),
};

static struct omap_kp_platform_data palmtt_kp_data = {
    .rows   = 6,
    .cols   = 3,
    .keymap_data = &palmtt_keymap_data,
};

static struct platform_device palmtt_kp_device = {
    .name       = "omap-keypad",
    .id     = -1,
    .dev        = {
        .platform_data = &palmtt_kp_data,
    },
    .num_resources  = ARRAY_SIZE(palmtt_kp_resources),
    .resource   = palmtt_kp_resources,
};

static struct platform_device palmtt_lcd_device = {
    .name       = "lcd_palmtt",
    .id     = -1,
};
static struct omap_irda_config palmtt_irda_config = {
    .transceiver_cap    = IR_SIRMODE,
    .rx_channel     = OMAP_DMA_UART3_RX,
    .tx_channel     = OMAP_DMA_UART3_TX,
    .dest_start     = UART3_THR,
    .src_start      = UART3_RHR,
    .tx_trigger     = 0,
    .rx_trigger     = 0,
};

static struct resource palmtt_irda_resources[] = {
    [0] = {
        .start  = INT_UART3,
        .end    = INT_UART3,
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device palmtt_irda_device = {
    .name       = "omapirda",
    .id     = -1,
    .dev        = {
        .platform_data  = &palmtt_irda_config,
    },
    .num_resources  = ARRAY_SIZE(palmtt_irda_resources),
    .resource   = palmtt_irda_resources,
};

static struct platform_device palmtt_spi_device = {
    .name       = "spi_palmtt",
    .id     = -1,
};

static struct omap_backlight_config palmtt_backlight_config = {
    .default_intensity  = 0xa0,
};

static struct platform_device palmtt_backlight_device = {
    .name       = "omap-bl",
    .id     = -1,
    .dev        = {
        .platform_data= &palmtt_backlight_config,
    },
};

static struct omap_led_config palmtt_led_config[] = {
    {
        .cdev   = {
            .name   = "palmtt:led0",
        },
        .gpio   = PALMTT_LED_GPIO,
    },
};

static struct omap_led_platform_data palmtt_led_data = {
    .nr_leds    = ARRAY_SIZE(palmtt_led_config),
    .leds       = palmtt_led_config,
};

static struct platform_device palmtt_led_device = {
    .name   = "omap-led",
    .id = -1,
    .dev    = {
        .platform_data  = &palmtt_led_data,
    },
};

static struct platform_device *palmtt_devices[] __initdata = {
    &palmtt_flash_device,
    &palmtt_kp_device,
    &palmtt_lcd_device,
    &palmtt_irda_device,
    &palmtt_spi_device,
    &palmtt_backlight_device,
    &palmtt_led_device,
};

static int palmtt_get_pendown_state(void)
{
    return !gpio_get_value(6);
}

static const struct ads7846_platform_data palmtt_ts_info = {
    .model          = 7846,
    .vref_delay_usecs   = 100,  /* internal, no capacitor */
    .x_plate_ohms       = 419,
    .y_plate_ohms       = 486,
    .get_pendown_state  = palmtt_get_pendown_state,
};

static struct spi_board_info __initdata palmtt_boardinfo[] = {
    {
        /* MicroWire (bus 2) CS0 has an ads7846e */
        .modalias   = "ads7846",
        .platform_data  = &palmtt_ts_info,
        .max_speed_hz   = 120000    /* max sample rate at 3V */
                    * 26    /* command + data + overhead */,
        .bus_num    = 2,
        .chip_select    = 0,
    }
};

static struct omap_usb_config palmtt_usb_config __initdata = {
    .register_dev   = 1,
    .hmc_mode   = 0,
    .pins[0]    = 2,
};

static struct omap_lcd_config palmtt_lcd_config __initdata = {
    .ctrl_name  = "internal",
};

static void __init omap_mpu_wdt_mode(int mode) {
    if (mode)
        omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
    else {
        omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
        omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
    }
}

static void __init omap_palmtt_init(void)
{
    /* mux pins for uarts */
    omap_cfg_reg(UART1_TX);
    omap_cfg_reg(UART1_RTS);
    omap_cfg_reg(UART2_TX);
    omap_cfg_reg(UART2_RTS);
    omap_cfg_reg(UART3_TX);
    omap_cfg_reg(UART3_RX);

    omap_mpu_wdt_mode(0);

    platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));

    palmtt_boardinfo[0].irq = gpio_to_irq(6);
    spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
    omap_serial_init();
    omap1_usb_init(&palmtt_usb_config);
    omap_register_i2c_bus(1, 100, NULL, 0);

    omapfb_set_lcd_config(&palmtt_lcd_config);
}

MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
    .atag_offset    = 0x100,
    .map_io     = omap15xx_map_io,
    .init_early     = omap1_init_early,
    .reserve    = omap_reserve,
    .init_irq   = omap1_init_irq,
    .init_machine   = omap_palmtt_init,
    .init_late  = omap1_init_late,
    .timer      = &omap1_timer,
    .restart    = omap1_restart,
MACHINE_END